Key Highlights

● Caterpillar closed at $647.39, its worst day since March 2020.

● Adjusted Earnings of $7.20 per share topped the $7.08 consensus.

● Backlog hit a record $78.1 billion, but growth slowed from earlier quarters.

● The company kept its 2026 Revenue outlook unchanged and Tariff cost estimate near $2.2 billion.

Caterpillar (NYSE:CAT) topped earnings forecasts and posted a record backlog, but slower Backlog growth and an unchanged revenue outlook sent the stock to its worst day since March 2020.

The biggest drag on the Dow

Caterpillar was the heaviest loser in the Dow Jones Industrial Average on Thursday. Shares tumbled to close at $647.39 on October 29, their worst day since March 2020, according to market data. One report said the stock fell even further at its intraday low before recovering a little ground.

The Dow lost 132.54 points to 52,342.56, and Caterpillar's slide was a major reason. The machinery giant has now fallen a long way from its June peak.

A beat, but a thin one

The third-quarter numbers were not bad. Adjusted Earnings Per Share came in at $7.20, ahead of the $7.08 consensus. Revenue reached about $20.7 billion, topping a $20.55 billion consensus estimate, according to market data, although another source described revenue as merely meeting estimates and coverage differed on that point.

The backlog hit a record $78.1 billion, up about $6 billion from the prior quarter. The problem, as investors saw it, was that the backlog was growing more slowly than before. Caterpillar also kept its 2026 revenue growth outlook unchanged, a level that trailed what analysts had been hoping for, and maintained its estimate of roughly $2.2 billion in tariff costs.

Two details in the quarter drew scrutiny. Results included $128 million of recoveries tied to IEEPA tariffs, which the Supreme Court struck down earlier in 2026, and construction sales were light.

"A chink in the CAT armor"

One analyst said the results gave investors "a chink in the CAT armor," according to market commentary. For a stock that had been priced on the idea of relentless demand, including from data-centre construction and power projects, any hint of slowing order momentum was enough to trigger heavy selling.

Industrials split down the middle

Caterpillar's fall stood out because much of the rest of industrial America rallied. Huntington Ingalls (NYSE:HII) soared after a strong quarter, Textron (NYSE:TXT) jumped on a beat and raised guidance, and GE Aerospace (NYSE:GE) climbed after lifting its full-year outlook. Defense names including L3Harris (NYSE:LHX) also gained.

That pattern matched the broader session. The S&P 500 slipped 23.59 points to 7,720.39, mostly because of Alphabet (NASDAQ:GOOGL)'s historic plunge, but more than 400 of its members rose and eight of 11 sectors advanced. The Russell 2000 gained 28.71 points to 2,859.22. One market strategist said, "Money is rotating within the market rather than leaving it."

The economy itself gave little reason for gloom. Third-quarter GDP accelerated from the second quarter and beat forecasts, and Business Investment surged, a sign that Capital spending across the economy remains strong.

Earnings season as a whole has been strong. Of the 253 S&P 500 companies that had reported, a large majority beat expectations, according to market data, which makes a modest beat like Caterpillar's look less impressive by comparison.

What to watch

For Caterpillar, the next markers are order trends in coming months, including whether backlog growth reaccelerates and whether construction Demand firms up. Updates on tariff costs and any further refund recoveries will also matter.

Across the sector, Deere (NYSE:DE) rose in after-hours trading on Thursday, though no company-specific catalyst was found for that move. Friday brings the Employment Cost Index, and the Federal Reserve's December 8–9 meeting looms, with futures leaning toward a rate hike after a strong GDP report. Higher borrowing costs would matter for the construction and Mining customers that buy Caterpillar's machines.